<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>大数据热点案例</title>
    <style>
        h5 {
            font-weight: normal;
            color: #fff;
            font-size: 12px;
            position: absolute;
            bottom: 300px;
            right: 580px;
        }
        
        body {
            background-color: #302e2e;
        }
        
        .map {
            margin: 0 auto;
            width: 747px;
            height: 616px;
            background: url(./map.png) no-repeat;
        }
        
        @keyframes dotted {
            70% {
                width: 40px;
                height: 40px;
                opacity: 1;
                border-radius: 20px;
            }
            100% {
                width: 70px;
                height: 70px;
                opacity: 0;
                border-radius: 35px;
            }
        }
        
        .beijing {
            position: absolute;
            top: 236px;
            right: 588px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 4px;
        }
        
        .taibei {
            position: absolute;
            bottom: 210px;
            right: 472px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 4px;
        }
        
        .wuhan {
            position: absolute;
            bottom: 310px;
            right: 590px;
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 4px;
        }
        
        div[class^="circle"] {
            position: absolute;
            width: 8px;
            height: 8px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            box-shadow: 0 0 10px skyblue;
            /* animation: name duration timing-function delay iteration-count direction fill-mode; */
            animation: dotted linear 1.2s infinite;
        }
        /* .beijing .circle1 {
            animation-delay: 0.2s;
        } */
        
        .circle2 {
            animation-delay: 0.4s !important;
        }
        
        .circle3 {
            animation-delay: 0.8s !important;
        }
    </style>
</head>

<body>
    <div class="map">
        <!-- 北京区 -->
        <div class="beijing">
            <div class="dot"></div>
            <div class="circle1"></div>
            <div class="circle2"></div>
            <div class="circle3"></div>
        </div>
        <!-- 台北区 -->
        <div class="taibei">
            <div class="circle1"></div>
            <div class="circle2"></div>
            <div class="circle3"></div>
        </div>
        <!-- 武汉区 -->
        <h5>武汉</h5>
        <div class="wuhan">
            <div class="circle1"></div>
            <div class="circle2"></div>
            <div class="circle3"></div>
        </div>
    </div>
</body>

</html>